Finding the Third Proportional to 28,743.19 and 42,937.78

Step by Step Solution

1. Step 1: Write the proportion equation
   28,743.19 : 42,937.78 = 42,937.78 : x
2. Step 2: Convert to fraction form
   28,743.19/42,937.78 = 42,937.78/x
3. Step 3: Cross multiply
   28,743.19x = 42,937.78 × 42,937.78
4. Step 4: Simplify right side
   28,743.19x = 1,843,653,058.67
5. Step 5: Solve for x
   x = 1,843,653,058.67/28,743.19
6. Step 6: Final answer
   x = 64,142.26